Pump.



PATENTED NOV.'5, 1907.

f No. 869,926.

P. A. MYERS.

PUMP. APPLICATION I'LED FEB. 12. 1906.

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rim-'rn Salrssrafrn ros.

*namur A. MYERS, or ASHLAND, omo, ASSGNoR To r. MYERS AND 'Baofrrmafor ASHLAND, OHIO,.A COPARTNERSHIP.

PUMP.

l Patented Niov. 5, 1907.

Application led February l2. 1906. Serial No. 300.575.

' To all whom it -'nay concern:

Be it known that I, PHrLrr A, MYERS, a citizen oi the United States, residing at Ashland, in the county of 'Ashland and State of Ohio, have invented certain new and useful Improvements in Pumps, or" which the following is a specification, reference being had therein to theaccompanying drawings, `This. invention relates to pumps, and more particularly to that class of pumps designed for use both as hand pumpsland as windmill-actuated pumps, in which the connection between the pump handle which is used in operating the pump by hand and the pump rod is a rack and gear segment connection.

.Y The primary object of my present invention is to provide'a simple, inexpensive'and eicient device whereby thegear segment on the pump handle may be readily moved into and out of mesh with the rack, the former being its position when thepump is operated by hand v erated.

' To these and other e nds my invention consists in cer'- tain novel features which I will now proceed to describe. and then particularly point out inthe claims.

In the accompanying drawings, Figure l is a side elevation of a pump embodying my invention in one form; Fig. 2 is an enlarged detail plan section thereof, taken on the line :t a* of Fig. 1 and looking in the direction of the arrows; Fig. 3 is a vertical sectional view, taken on the line y y of Fig. 2 and looking lin the direction of the arrows; F ig.,4 is a detail perspective view of a portion of the rack; and Fig. 5 is a detail view of the gear segment.

A In the said drawings, in which I have shown my invention as applied to a well known form of pump, 1 indicates the standard, 3 the head, provided with a spout 2, 4 the fulcrumsupport rising from the StIaQlardVandY 5Y the pump rod. These parts-may 'be of any approved construction. v'lfhepumpirod is flattened .at its upper end to receive 'or have formed thereon a rack 6, and the support '4 is provide'd with a guide '7 or this portion of 'the rod, and with a roller 8, which bears against the back ofthe pump rod at the point where the gear segment Aneshes with the same. The support is also provided vith a hood or housing 9, which incloses and protects thegeamsegment.

-I'rlhe gear segment, indicated by the reference nu- -neral I0, is secured to the end o the pump handle .11, being preferably provided with an integral socket l2, into which the handle proper is threaded. Said gear .segment is provided with a bearing sleeve 13, which ,upper end ofthe support 4, which support is bifurcated Hts upon an eccentric 14, which latter forms a pivot or bearing upon ywhich the gear segment turns. j This eccentric 14 is secured to, or, preferably, `formed iny one piece with a rock shaft 15, which latter is 'mounted in suit-able bearings in the lateral cheek pieces 16 of the at its upper end to receive the 'gear segment, its ecceneccentric 14, the same being closed by means `v'of a plate 18, secured in position by Screws 19. The rock shaft 15 has' its bearing at one end in this plate 18, while the'v bearing of the other end of the rock shaft is directlyin the other cheek piece 16.` The shaft 15 projects at one end suiciently to receive an operating handle 20, by

means of .'which said shaft may be-rockedthrough a-clis-l tance about equal to a half revolution or a little more'. In the position oi' the parts shown in the drawings, the shaft 15 is at one end oi its range of movement,` and the eccentric 14 lies on that side of the shaft 15 nearest the rack bar G, in which position oi the parts the gear segment 10 meshes with the teeth of said rack bar, as Shown. lt will also be noted that, in this position'oi the parts, the handle 2O rests against the stop pin or projection 21, which limits its movement in this direction'and insures proper relations between the gear segmenti-and rack.

There is a tendency of theeccentric 14 to turn when in this position, said tendency being in a downward direc-v tion, and being resisted 'by the contactof the handle 20 tion can be instantly periormed, and the pump handle may be .thrown into and out ot gear in a moment. Preferably, the support 4 is provided with a. stop prowjection22-,-shown in ,therpresent instance'as being in the form of a strengthening flangefor saidsupport, with which the handle 20 comes into contact when. the parte are thrown out or' gear, theweight of the segment and handle upon the eccentric tending to turn this latter beyond the desired point, and such excess of rotation being prevented by the contact of the handle with the stop 22. h

It is desirable in pumpsoi this' description that the segment should enga-ge the rack, when thrown into meshl with the same, in such a way that'the full stroke. of the pump may be obtained and the handle may move through its predetermined. arc inl making that stroke. It' will Afurther be notedA that when the gear segment is thrown into mesh with the rack, the position ofthe parts isnsually such that the pumpv rod .is .sin

2 escena: l

Y. .ril-'I' n. lts lowermost position, since7 ordinarily, the rod is disconnectedirom the windmill beiorehand, and there- A"fore falls by gravity -into the position noted. This' 10 I l an extra width, greater than that of the rack, as'indi.

necesstate's'the moving ot the pump handle into a -practicallyv horizontal position in lorder` to cause a proper engagement ofthe gear segmentan'd rack. To insure this proper engagementl have devisedv the con-- struction illustrated more particularly l'in- Fig's. 4 and 5, in which 'it will be seen that o neof theteeth of the segment, preferably the last or uppermost tooth, is given cated at 23. VThereis provided onthe corresponding side of the 'rack a blocking piece 24,V which may be `ormedin one piece 'Withlthe rack or rod, but which is preferably a separate' stripsecured thereon, as shown. This blocking istrip extends outward so as to obstruct the spaces between the-teeth ofthe rack and prevents the wide tooth'23 from enteringfthe rack eX'ceptibel tweenv the two teeth with which it should properly; enI` gage to give the-fullv stroke, andto this 'end said bloc ing 'strip is notched vor'cut away at this point', as indi'- cated at 25.-) It will be seen thatfwhen thepurnp han'- die 'is moved up into horizontal position prior -t0 throwing the gear segment into mesh, the wide tooth 23 25., engagesyor .fully engages', v between the lteeth of the will'come into Contact with the; blocking strip beforeit' racl 'unle`ss thisl latter'is ina proper position, thereby l preventing improperengagementof said parts; lWhen the rack is'in proper position, the wide tooth enters-the J the precise fusain of kousen-@usar hemmt@ scribed and shown i'n' thefaccompanyingdrawings, a8

` it is'ob'vious thatthese 'details may pump h onnectedftherewith', a 'pump rod" provided, .with h .v. rl 1ich 4the gearseg'ment is adapted' to mesh, 1` supportingv the pump` 'rod against the l departing from the prineipleof rnv-invention; f 40- ,notch4 2 5, theteeth'of the :gear-segment enter-into.

.I p roper mesh with thoseof the'regelt,l and the rol sh ai t l makes its iullfmovement, hringing the' handle '20' against thestopQl and' indicating 4that theparts are in nHearing thus *fully vdescribed my invention, .what If claim .I1- Ina-'rach'and gear pump adapted' torbothftvindmill and .hand.- operation, a- 'standard provided with altlcrumsupporblilfrpckg shaft mon-nted'jin said 'fulcrum saipport 'andprovid'ed whren-eccentric andan operating handleaj gean segmentgjournaied on said 'eccentric and having a thrust' or-'thegear segment, land stop projections l on lthe fulcrurh support arranged in the path' of the operatingA nanrnei oftne rock shaft at the umts of itsmotion inl e'ach direction,' said hand1e beine heldagainst o'neof-said- I as new and` 'desire to secure Letters -Patent,y

stop projections by the weight of the load on the eccentric when said eccentric is on one side of'the rock 'shaft and other stop projection by the same means when the eccentric 4is onthe other side of the rock shaft and the parts are ont of mesh, substantially as described.-

and hand operation, 'a standard provided with a fulc'rnm support having cheek pieces, a vrock shaft having an eccentric fixed thereon between its ends, one end-'of said rock shaft hearing on one of the cheek pieces, the other cheek piece having an aperture for the passage of the eccentric,

which the other-'gend :oflthe rock shaft has its hearing, means ,for' operating sadrock shaft, .-a gear segment gear segment 4.is adapted to mesh, substantially as -described.

.3. Ina rack and gear' pump adapted for both windmill land hand operation, a pump rod provided with' rack, in combination with a pump handle provided with z,g,'. 'ear4 seg from said'rack to throw it into`andout etimesh, and positioning means for insuring. the proper registry of 4said gear segment-and rack when thrown into mesh, substantiaily as described. f

'and hand.operation, a pump rod providediwtha rack,in

segment, means for moving said gear segment toward and from said rack -to v throw `it into and out of mesh,`and

ment and-'rack Whenfthrown into-meshpsaidmeanslcomf to and outof mesh therewith, substantially as described.

nd'handpperation, apump rod provided with a rack, a

structing the spaces between the teeth thereof at on'e end ment, andmeans for 'moving said gear segment toward and from said-.rack tojthrovvthe same into andoutof extra width, and the blocking strip having a notch to receivesaidextraiwide tooth when the parts are' in proper registryysubstantially as described.

In testimony whereof, `I ax my signature in presence ofjtwo Witnesses.'

PHILIP A. MYERS.

2. In a rack end gear pump adapted'for-both windmill a removable 'platebn said'lastlmentioned cheek piece inA mounted-.on said, eccentric and provided with ajpumpv 'handle,v and a pump rod having a 'rack `With Which'said ment, means for moving said geary segment toward and.

4. In a rack and gear pump adapted for' .both Windmill means for insuring .the proper registryotgsaid gear segg prising a, tooth ofextra width on the gear segmentand'a.' blocking .stripon the rack. provided with a correspondingl saidgear segment tow'ardaiid from' said rack tothrow it In afi-ack land gear pump' adaptedfor both 'wlndmili blocking str iplocatedat o'ne'side of said lrack andob-v of said; spaces, a pump 4handle, provided vvth-a gear segmesh therewith, said 'gea'r .segment having one tooth "of the-parts are in mosh, said handle being held against the l comhinationwith a pumphandle provided with a gear i and hand.operation,l a 'pump rod provided with a rack, 

